Abrasive insert



FIG. 1 is a front perspective view of the insert of the present invention.

FIG. 2 is a side view of the embodiment of FIG. 1 which is the same through all angles of rotation;

FIG. 3 is a bottom view of the embodiment of FIG. 1; and,

FIG. 4 is a top view of the embodiment of FIG. 1. 

The ornamental design for an abrasive insert, as shown and described. 